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The Characteristics of Oxidation and Adsorption Processes for 2-Methylisoborneol(2-MIB) Removing

2-Methylisoborneol(2-MIB)제거를 위한 산화 및 흡착공정의 특성

  • 최근주 (부산시 상수도 사업본부 수질연구소) ;
  • 김상구 (부산시 상수도 사업본부 수질연구소) ;
  • 류동춘 (부산시 상수도 사업본부 수질연구소) ;
  • 신판세 (부산시 상수도 사업본부 수질연구소) ;
  • 손인식 (부경대학교 토목공학과) ;
  • 오광중 (부산대학교 환경공학과)
  • Published : 2002.03.01

Abstract

One of the Musty and earthy smell compounds in raw water is generally attributed to 2-methylisoborneol (2-MIB). It is well known that activated carbon and oxidants such as $O_3$, Cl $O_2$, are effective ways to control 2-MIB. In isotherm equilibrium experiments, 2-MIB in distilled water was much more adsorbed to the activated carbon(A/C) than raw water containing dissolved organic carbon (DOC). The Freundlich constants(k) of distilled water and raw water were 3.36 and 0.049, and 1/n values were 0.80 and 0.42, respectively. The 2-MIB residual rate were Y = $e^{-0}$.55x/~ $e^{-0}$.54x/ with Ozone( $O_3$) dose by 5 minutes contact time at the 241 and 353 ng/L initial concentrations. The 2-MIB residual rate were Y = $e^{-0}$.32x/~ $e^{-0}$.35x/ with Chlorine dioxide(Cl $O_2$) dose by 15 minutes contact time at the 89 and 249 ng/L initial concentrations. 2-MIB was decreased from 1911 ng/L to 569ng/L by post-ozonation(70%removal efficiency) and removal efficiencies of 2-MIB by the following 4 kinds Granular Activated Carbon(GAC) process such as coal base, coconut base, wood base and zeolite+carbon base were 95.8, 89.5, 88.4, and 93.7% respectively.ely.

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